1978 Fischer-Grand Prix

The 1978 Fischer-Grand Prix was a men's tennis tournament played on indoor hard courts at the Wiener Stadthalle in Vienna, Austria that was part of the 1978 Colgate-Palmolive Grand Prix. It was the fourth edition of the tournament and was held from 23 October until 29 October 1978. Fourth-seeded Stan Smith won the singles title.

Singles
🇺🇸 Stan Smith defeated 🇭🇺 Balázs Taróczy 4–6, 7–6, 7–6, 6–3
 * It was Smith's 5th title of the year and the 72nd of his career.

Doubles
Víctor Pecci / 🇭🇺 Balázs Taróczy defeated Bob Hewitt /  Frew McMillan 6–3, 6–7, 6–4
 * It was Pecci's 5th title of the year and the 8th of his career. It was Taróczy's 5th title of the year and the 8th of his career.